Cops raided Amy Graves’ home following a tip off about footage showing the alleged vile session.
The 43-year-old has been charged with unnatural intercourse with a dog, and could be jailed for 10 years if convicted.
Sheriff Danny Rigel said: “This is a tip that came through crime stoppers.
“We have video evidence of the crime occurring that was posted online, which led us to the search and arrest warrant.”
He said it was not the first time he has seen such a case, but it was a “very rare” occurrence.
Graves, a photographer, was booked into Lamar County Jail to await her first court appearance.
She will have to register as a sex offender if found guilty.
The breed of the pooch has not been revealed, but it has been left with family members, said Sheriff Rigel.
The alleged crime took place within the last year, he added.
This is not the first disturbing case of a human allegedly having sex with a dog.
Sick James Aaron Laity, 34, encouraged his pet Staffordshire bull terrier to perform a sex act on a woman he raped.
Florida resident Bradley Hubbard was also accused of
Firefighter Zackery Blaine Perry (Zack Perry) in Oklahoma was alleged to have
Barrera-Lugo is also alleged online to be an illegal alien.
- Oklahoma: Firefighter Zack Perry, who performed as a clown for department events, arrested on complaints of child pornography
- Oklahoma: Ex-Muskogee firefighter Zack Perry charged with child porn, sex with dog
- Oklahoma: Bond revoked for ex-Muskogee firefighter Zack Perry accused of child porn, sex with dog
- Oklahoma: Ex-firefighter Zack Perry, already charged with child porn, bestiality is now accused of paying Melissa Humphrey to bring children to him so he could rape them